Nov 16 22:49:48.520 INFO testing kbacha/json_serde_test against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 16 22:49:48.520 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 16 22:49:48.690 INFO [stdout] 99659abb5c8e9b47e00ef7fb634095ef3370673907261e66ea9b7f2bafed62f7
Nov 16 22:49:48.692 INFO running `"docker" "start" "-a" "99659abb5c8e9b47e00ef7fb634095ef3370673907261e66ea9b7f2bafed62f7"`
Nov 16 22:49:49.080 INFO [stderr] usermod: no changes
Nov 16 22:49:49.143 INFO [stderr]    Compiling json_testing v0.1.0 (/source)
Nov 16 22:49:49.499 INFO [stderr] warning: unused import: `Read`
Nov 16 22:49:49.499 INFO [stderr]  --> src/main.rs:7:21
Nov 16 22:49:49.499 INFO [stderr]   |
Nov 16 22:49:49.499 INFO [stderr] 7 | use std::io::{self, Read};
Nov 16 22:49:49.499 INFO [stderr]   |                     ^^^^
Nov 16 22:49:49.499 INFO [stderr]   |
Nov 16 22:49:49.499 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 16 22:49:49.499 INFO [stderr] 
Nov 16 22:49:50.107 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
Nov 16 22:49:50.107 INFO [stderr] su: No module specific data is present
Nov 16 22:49:50.520 INFO running `"docker" "inspect" "99659abb5c8e9b47e00ef7fb634095ef3370673907261e66ea9b7f2bafed62f7"`
Nov 16 22:49:50.601 INFO running `"docker" "rm" "-f" "99659abb5c8e9b47e00ef7fb634095ef3370673907261e66ea9b7f2bafed62f7"`
Nov 16 22:49:50.798 INFO [stdout] 99659abb5c8e9b47e00ef7fb634095ef3370673907261e66ea9b7f2bafed62f7
Nov 16 22:49:50.804 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 16 22:49:51.447 INFO [stdout] 93be5c6c0124d308960be7cfeba1027161cbbf6cd691f1bc0ad9e89f07e999b3
Nov 16 22:49:51.452 INFO running `"docker" "start" "-a" "93be5c6c0124d308960be7cfeba1027161cbbf6cd691f1bc0ad9e89f07e999b3"`
Nov 16 22:49:52.423 INFO [stderr] usermod: no changes
Nov 16 22:49:52.525 INFO [stderr]    Compiling json_testing v0.1.0 (/source)
Nov 16 22:49:52.887 INFO [stderr] warning: unused import: `Read`
Nov 16 22:49:52.888 INFO [stderr]  --> src/main.rs:7:21
Nov 16 22:49:52.888 INFO [stderr]   |
Nov 16 22:49:52.888 INFO [stderr] 7 | use std::io::{self, Read};
Nov 16 22:49:52.888 INFO [stderr]   |                     ^^^^
Nov 16 22:49:52.889 INFO [stderr]   |
Nov 16 22:49:52.889 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 16 22:49:52.889 INFO [stderr] 
Nov 16 22:49:53.311 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
Nov 16 22:49:53.318 INFO [stderr] su: No module specific data is present
Nov 16 22:49:53.547 INFO running `"docker" "inspect" "93be5c6c0124d308960be7cfeba1027161cbbf6cd691f1bc0ad9e89f07e999b3"`
Nov 16 22:49:53.663 INFO running `"docker" "rm" "-f" "93be5c6c0124d308960be7cfeba1027161cbbf6cd691f1bc0ad9e89f07e999b3"`
Nov 16 22:49:53.857 INFO [stdout] 93be5c6c0124d308960be7cfeba1027161cbbf6cd691f1bc0ad9e89f07e999b3
Nov 16 22:49:53.860 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 16 22:49:54.020 INFO [stdout] 7976b586480227d60ed7fa2501185ca9f79e9a200311a697f15f01d93fc768e5
Nov 16 22:49:54.024 INFO running `"docker" "start" "-a" "7976b586480227d60ed7fa2501185ca9f79e9a200311a697f15f01d93fc768e5"`
Nov 16 22:49:54.445 INFO [stderr] usermod: no changes
Nov 16 22:49:54.481 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Nov 16 22:49:54.482 INFO [stderr]      Running /target/debug/deps/json_testing-ef53fd455ef1f222
Nov 16 22:49:54.484 INFO [stdout] 
Nov 16 22:49:54.484 INFO [stdout] running 0 tests
Nov 16 22:49:54.484 INFO [stdout] 
Nov 16 22:49:54.484 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 22:49:54.484 INFO [stdout] 
Nov 16 22:49:54.485 INFO [stderr] su: No module specific data is present
Nov 16 22:49:54.805 INFO running `"docker" "inspect" "7976b586480227d60ed7fa2501185ca9f79e9a200311a697f15f01d93fc768e5"`
Nov 16 22:49:54.917 INFO running `"docker" "rm" "-f" "7976b586480227d60ed7fa2501185ca9f79e9a200311a697f15f01d93fc768e5"`
Nov 16 22:49:55.006 INFO [stdout] 7976b586480227d60ed7fa2501185ca9f79e9a200311a697f15f01d93fc768e5